Can I use timesheet to write contractor check in QB online like I could on desktop version. Can't seem to find out how.

Hello there, @2003cummins. 

Currently, the timesheets feature in QuickBooks Online is only for customers. As a workaround, you can create a bill or write a check instead. I'll guide you how:

1. Select +New, then choose Pay bills.
2. Select your payment account.
3. Modify the date.
4. In the Payment column, enter the payment amount.
5. Click Save and close.

I understand that creating a bill for your vendor using the billable feature in the Timesheet feature is a great product suggestion. I'll personally make sure this will reach our Development team's attention to consider adding your ideas to future QuickBooks updates. 

For future reference, take time to read through this article to learn more about setting up your contractors as vendors and tracking related payments in QBO.

Let me know if you still have questions about paying your vendors by leaving a reply below. I'm always glad to help in any way I can.